Secret information about 10 million Australian telecoms subscribers may have been compromised by a massive hack of the country's second-largest provider, the firm revealed Friday, reports NDTV.
Optus chief executive Kelly Bayer Rosmarin said a "sophisticated" actor was behind a cyberattack, which gained access to information about up to 9.8 million telecom subscribers.
The data accessed included customers' names, dates of birth, phone numbers and email addresses, as well as some driver's licence and passport numbers.
According to the Singapore-owned firm, no passwords or bank details were taken.
It is not yet clear whether the attack came from a state-based or criminal organisation, but Bayer Rosmarin said no ransom demand had been made.
The Australian Competition and Consumer Commission warned the citizens who were potentially impacted - a number that matches almost half the country's population - that they could be at risk of identity theft.
Bd-pratidin English/Golam Rosul
